M 5.6 in Chile on 21 Dec 2023 16:21 UTC

Hazard models

Rapid Impact
Shakemap
Tsunami

Event summary

This earthquake is expected to have a low humanitarian impact based on the magnitude and the affected population and their vulnerability.

Earthquake Magnitude: 5.6M
Depth: 62.9 Km
Lat/Lon: -21.9084 , -70.1486
Event Date: 21 Dec 2023 16:21 UTC
21 Dec 2023 13:21 Local
Exposed Population: 30 thousand in MMI&>=IV
Source: NEIC us7000lkpg
Inserted at: 22 Dec 2023 22:19 UTC
INFORM Coping capacity of the alert score
3 (Chile)

GDACS Score

For more info on GDACS alert score click here.
  Earthquake
(Rapid Impact)		 GDACS score
NEIC 0 0
us7000lkpg Scaled population (vector) 0  
  C1 rapid impact 0  
  C2 rapid impact 0  
  Country Vulnerability 0  
  INFORM_normalised 0  
Maximum expected impact using different data sources.

Episode Timeline

IDAlertScoreDateMag, DepthMMI*Population**Tsunami risk***Delay (hh:mm)Source
1543541 0 21 Dec 2023 16:21 5.7M, 55.3km 5.91 N/A (in MMI>=VII) 00:21 NEIC
1543754 0 21 Dec 2023 16:21 5.6M, 62.9km 4.54 30 thousand (in 100km) 1d 05:57 NEIC
The episode that generated the alert; the next major evaluations beyond 12 hours will not trigger additional alerts.
The episode that has the last updated information.
* The max MMI detected for sources having shakemaps;
** The population detected in MMI>=7 for episode with shakemap or in a 100km radius;
*** The tsunami max height.

Exposed population

The earthquake happened in Chile , Region of Antofagasta (population 10,060) . The nearest places are Pozo Perdido, Quillagua, Tocopilla, La Posada, Barriles, Tres Puntas, El Tigre, Ojeda, Colupito, Puntillas, and Quillagua.

Radius Population
100 km 21000 people
75 km 19000 people
50 km 17000 people
20 km 2400 people
10 km <1000 people
5 km <1000 people
2 km no people

Affected Provinces

Region Province Country Population
Antofagasta Chile 10000 people

Affected populated places

Name Region Province Country City class Population Distance
Pozo Perdido Antofagasta Chile Village - 10 km
Quillagua Antofagasta Chile Village - 18 km
Tocopilla Antofagasta Chile City 24000 people 20 km
La Posada Antofagasta Chile Village - 23 km
Barriles Antofagasta Chile Village - 24 km
Tres Puntas Antofagasta Chile Village - 28 km
El Tigre Antofagasta Chile Village - 28 km
Ojeda Antofagasta Chile Village - 37 km
Colupito Antofagasta Chile Village - 40 km
Puntillas Antofagasta Chile Village - 44 km
Aventura Antofagasta Chile Village - 57 km
Rica Aventura Antofagasta Chile Village - 57 km
Quebradillas Antofagasta Chile Village - 58 km
Oficina Toco Antofagasta Chile Village - 58 km
Toco Antofagasta Chile Village - 60 km
Calale Antofagasta Chile Village - 65 km
Gatico Antofagasta Chile Village - 68 km
María Elena Antofagasta Chile Village - 70 km
Quillagua Antofagasta Chile Village - 70 km

see full list

Critical infrastructure

Airports, ports, nuclear plants and hydrodams at risk, if affected, are listed below.

Airports

Name IATA Code Elevation (m) Usage Runway type IFR Runway Length (ft) Distance
Barriles TOQ 975 Civ. Paved No 5300 27 km
Maria Elena 1311 0 63 km

Ports

Name LOCODE Country Distance
Tocopilla CLTOQ Chile 19 km

More information

For a full list of available products related to this event, please refer to the GDACS Resources page.